What does fa mean?
Fa is the fourth degree of the diatonic scale in the solfège system, corresponding to the pitch class F in fixed-do notation. Along with its companions do, re, mi, sol, la, and ti, it serves as a syllable for singing notes aloud, making melodies easier to internalize than letter names alone would allow. Vocalists, choirs, and music students use fa constantly during sight-singing exercises, where each syllable maps onto a step of the scale. The word traces back to eleventh-century Italy, when the theorist Guido of Arezzo drew his syllables from the opening phrases of a Latin hymn to John the Baptist; fa comes from the first word of the third phrase, "famuli." Compact, instantly recognizable to musicians worldwide, and embedded in centuries of pedagogy, fa remains a small but essential unit of how Western music is taught and spoken about.
nounThe fourth note of the diatonic scale in solfège, corresponding to F in fixed-do notation.
- The fourth note of the diatonic scale in solfège, corresponding to F.
"The choir warmed up by singing do, re, mi, fa, sol across the octave."
"She sang the scale slowly, lingering on the fa before rising to sol."
"In fixed-do systems, fa always names F natural regardless of key."
Rarely pluralized except when referring to multiple instances of the note in discussion or notation.
"The exercise alternated fas and mis across two octaves."
Every "fa" sung today descends from a medieval Latin hymn to St John the Baptist — it's the first half of "famuli," chosen simply because that line of the melody climbed one step higher than "mi."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of fa
Fa derives from medieval Latin "famuli," the first word of the third line of the hymn "Ut queant laxis" in honour of John the Baptist. Around the eleventh century, the Italian music theorist Guido of Arezzo selected the opening syllable of each successive melodic phrase as a mnemonic for the six ascending degrees of the hexachord, giving ut, re, mi, fa, sol, and la. In the later solfège system extended to seven and then eight notes, fa settled into its modern position as the fourth degree, corresponding to F. Related coinages such as "solfège" and "solmization" were built from these same syllables, with "sol" and "fa" supplying the root of the former term.
Related word forms
How fa is actually used
"Fa" is used almost exclusively in musical contexts — vocal training, sight-singing, and music education. The spelling "fah" is a common variant, especially in older British texts on tonic sol-fa. Outside music it appears only as the informal British rendering of "for" in eye-dialect writing (as in "fa' shizzle"-style or comic spellings), which is best avoided in formal writing.
Easily confused with fa
"Far" is an adjective/adverb meaning distant, while "fa" is the musical syllable naming the fourth note of the scale.